Answer:
the sun provides all energy
Most earthquakes are caused by faulting of rock in Earth's crust.
I believe it is B i took this test last year.
Answer:
The genetic code is degenerate.
Explanation:
The genetic code is degenerate: there are 64 triplets of different codons (sequence of three bases of mRNA that codes for a certain amino acid) and 20 amino acids. That is, an amico acid can be encoded by more than one codon.